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What Multi-Provider AI Abstraction Actually Costs You
The real price of unifying OpenRouter, Gemini, Ollama, OpenAI, and Anthropic behind a single interface — what it solves, what it adds, and the tradeoff that surfaces when you're routing 200+ models in production.
The Nginx Buffering Bug That Broke SSE for Two Days
Server-Sent Events in production: how a single missing response header silenced every progress stream, and what the connection registry, heartbeat, and cancellation architecture looks like once you've fixed the obvious thing.